319 lines
11 KiB
C
319 lines
11 KiB
C
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/* $XdotOrg: xc/programs/fonttosfnt/read.c,v 1.2 2004/04/23 19:54:32 eich Exp $ */
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/*
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Copyright (c) 2002 by Juliusz Chroboczek
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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/* $XdotOrg: xc/programs/fonttosfnt/read.c,v 1.2 2004/04/23 19:54:32 eich Exp $ */
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/* $XFree86: xc/programs/fonttosfnt/read.c,v 1.5 2003/12/19 02:05:39 dawes Exp $ */
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#include <stdio.h>
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include FT_BDF_H
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#include "X11/Xos.h"
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#include "fonttosfnt.h"
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#include "X11/fonts/fontenc.h"
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#define FLOOR2(x, y) ((x) >= 0 ? (x) / (y) : -(((-(x)) + (y) - 1) / (y)))
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#define CEIL2(x, y) (FLOOR2((x) + (y) - 1, (y)))
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#define FT_Pos_DOWN(x) (FLOOR2((x),64))
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#define FT_Pos_UP(x) (CEIL2((x), 64))
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static int ft_inited = 0;
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static FT_Library ft_library;
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static int
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FT_Ensure_Inited(void)
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{
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int rc;
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if(ft_inited)
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return 0;
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rc = FT_Init_FreeType(&ft_library);
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if(rc != 0)
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return rc;
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ft_inited = 1;
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return 0;
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}
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int
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readFile(char *filename, FontPtr font)
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{
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int i, j, k, index;
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int rc;
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FT_Face face;
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StrikePtr strike;
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BitmapPtr bitmap;
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int symbol = 0;
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char *encoding_name = NULL;
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FontMapPtr mapping = NULL;
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FontMapReversePtr reverse = NULL;
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rc = FT_Ensure_Inited();
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if(rc != 0)
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return rc;
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rc = FT_New_Face(ft_library, filename, 0, &face);
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if(rc != 0) {
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fprintf(stderr, "Couldn't open face %s.\n", filename);
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return -1;
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}
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encoding_name = faceEncoding(face);
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if(encoding_name == NULL) {
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symbol = 1;
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} else if(strcasecmp(encoding_name, "iso10646-1") != 0) {
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if(reencode_flag)
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mapping = FontEncMapFind(encoding_name,
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FONT_ENCODING_UNICODE, 0, 0, NULL);
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if(mapping == NULL) {
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symbol = 1;
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} else {
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reverse = FontMapReverse(mapping);
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if(reverse == NULL) {
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fprintf(stderr, "Couldn't reverse mapping.\n");
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return -1;
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}
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}
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}
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if(verbose_flag) {
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fprintf(stderr, "%s %s %s: %d sizes%s\n",
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filename, face->family_name, face->style_name,
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face->num_fixed_sizes,
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symbol ? " (symbol)" : "");
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}
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if(font->numNames == 0 && face->style_name && face->family_name) {
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char *full_name, *unique_name;
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BDF_PropertyRec prop;
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int rc, i;
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if(strcmp(face->style_name, "Regular") == 0)
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full_name = sprintf_reliable("%s", face->family_name);
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else
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full_name = sprintf_reliable("%s %s",
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face->family_name, face->style_name);
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/* The unique name doesn't actually need to be globally
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unique; it only needs to be unique among all installed fonts on a
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Windows system. We don't bother getting it quite right. */
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if(face->num_fixed_sizes <= 0)
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unique_name = sprintf_reliable("%s "XVENDORNAMESHORT" bitmap"
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, full_name);
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else if(face->available_sizes[0].width ==
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face->available_sizes[0].height)
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unique_name = sprintf_reliable("%s "XVENDORNAMESHORT
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" bitmap size %d",
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full_name,
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face->available_sizes[0].height);
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else
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unique_name = sprintf_reliable("%s "XVENDORNAMESHORT
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" bitmap size %dx%d",
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full_name,
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face->available_sizes[0].width,
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face->available_sizes[0].height);
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font->names = malloc(10 * sizeof(FontNameEntryRec));
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if(font->names == NULL) {
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fprintf(stderr, "Couldn't allocate names.\n");
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return -1;
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}
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i = 0;
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rc = FT_Get_BDF_Property(face, "COPYRIGHT", &prop);
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if(rc == 0 && prop.type == BDF_PROPERTY_TYPE_ATOM) {
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font->names[i].nid = 0;
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font->names[i].size = 2 * strlen(prop.u.atom);
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font->names[i].value = makeUTF16((char*)prop.u.atom);
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i++;
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}
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font->names[i].nid = 1;
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font->names[i].size = 2 * strlen(face->family_name);
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font->names[i].value = makeUTF16(face->family_name);
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i++;
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font->names[i].nid = 2;
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font->names[i].size = 2 * strlen(face->style_name);
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font->names[i].value = makeUTF16(face->style_name);
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i++;
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font->names[i].nid = 3;
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font->names[i].size = 2 * strlen(unique_name);
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font->names[i].value = makeUTF16(unique_name);
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i++;
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font->names[i].nid = 4;
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font->names[i].size = 2 * strlen(full_name);
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font->names[i].value = makeUTF16(full_name);
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i++;
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font->names[i].nid = 5;
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font->names[i].size = 2 * strlen("Version 0.0");
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font->names[i].value = makeUTF16("Version 0.0");
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i++;
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rc = FT_Get_BDF_Property(face, "FOUNDRY", &prop);
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if(rc == 0 && prop.type == BDF_PROPERTY_TYPE_ATOM) {
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font->names[i].nid = 8;
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font->names[i].size = 2 * strlen(prop.u.atom);
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font->names[i].value = makeUTF16((char*)prop.u.atom);
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i++;
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}
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font->names[i].nid = 10;
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font->names[i].size = 2 * strlen(XVENDORNAMESHORT
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" converted bitmap font");
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font->names[i].value = makeUTF16(XVENDORNAMESHORT
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"X converted bitmap font");
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i++;
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#ifdef __VENDORWEBSUPPORT__
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font->names[i].nid = 11;
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font->names[i].size = 2 * strlen(__VENDORWEBSUPPORT__);
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font->names[i].value = makeUTF16(__VENDORWEBSUPPORT__);
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i++;
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#endif
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font->numNames = i;
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font->flags = faceFlags(face) | (symbol ? FACE_SYMBOL : 0);
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font->weight = faceWeight(face);
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font->width = faceWidth(face);
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font->foundry = faceFoundry(face);
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font->italicAngle = faceItalicAngle(face);
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rc = FT_Get_BDF_Property(face, "UNDERLINE_POSITION", &prop);
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if(rc == 0 && prop.type == BDF_PROPERTY_TYPE_INTEGER)
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font->underlinePosition =
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(double)prop.u.integer / face->available_sizes[0].height *
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TWO_SIXTEENTH;
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else
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font->underlinePosition =
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- 1.5 / face->available_sizes[0].height * TWO_SIXTEENTH;
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rc = FT_Get_BDF_Property(face, "UNDERLINE_THICKNESS", &prop);
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if(rc == 0 && prop.type == BDF_PROPERTY_TYPE_INTEGER)
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font->underlineThickness =
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(double)prop.u.integer / face->available_sizes[0].height *
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TWO_SIXTEENTH;
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else
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font->underlineThickness =
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1.0 / face->available_sizes[0].height * TWO_SIXTEENTH;
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}
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if(face->num_fixed_sizes == 0) {
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fprintf(stderr, "No bitmaps in face.\n");
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return -1;
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}
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if(!symbol && !mapping)
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rc = FT_Select_Charmap(face, ft_encoding_unicode);
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else
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rc = FT_Select_Charmap(face, ft_encoding_none);
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if(rc != 0) {
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fprintf(stderr, "Couldn't select character map: %x.\n", rc);
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return -1;
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}
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for(i = 0; i < face->num_fixed_sizes; i++) {
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if(verbose_flag)
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fprintf(stderr, "size %d: %dx%d\n",
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i,
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face->available_sizes[i].width,
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face->available_sizes[i].height);
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rc = FT_Set_Pixel_Sizes(face,
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face->available_sizes[i].width,
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face->available_sizes[i].height);
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if(rc != 0) {
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fprintf(stderr, "Couldn't set size.\n");
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return -1;
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}
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strike = makeStrike(font,
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face->available_sizes[i].width,
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face->available_sizes[i].height);
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if(strike == NULL) {
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fprintf(stderr, "Couldn't allocate strike.\n");
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return -1;
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}
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for(j = 0; j < FONT_CODES; j++) {
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if(mapping)
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k = reverse->reverse(j, reverse->data);
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else
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k = j;
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if(k <= 0 && j != 0)
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continue;
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index = FT_Get_Char_Index(face, k);
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if(j != 0 && index == 0)
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continue;
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rc = FT_Load_Glyph(face, index,
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FT_LOAD_RENDER | FT_LOAD_MONOCHROME);
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if(rc != 0) {
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fprintf(stderr, "Couldn't load glyph for U+%04X (%d)\n",
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j, index);
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continue;
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}
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bitmap = makeBitmap(strike, j,
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FT_Pos_UP(face->glyph->metrics.horiAdvance),
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FT_Pos_DOWN(face->glyph->metrics.horiBearingX),
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FT_Pos_DOWN(face->glyph->metrics.horiBearingY),
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face->glyph->bitmap.width,
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face->glyph->bitmap.rows,
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face->glyph->bitmap.pitch,
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face->glyph->bitmap.buffer,
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crop_flag);
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if(bitmap == NULL) {
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fprintf(stderr, "Couldn't create bitmap.\n");
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return -1;
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}
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}
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}
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FT_Done_Face(face);
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j = 0;
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for(i = 0; i < FONT_CODES; i++) {
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int found = 0;
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strike = font->strikes;
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while(strike) {
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bitmap = STRIKE_BITMAP(strike, i);
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if(bitmap) {
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bitmap->index = j;
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found = 1;
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} else {
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if(i == 0) {
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fprintf(stderr,
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"Warning: no bitmap for the undefined glyph.\n");
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found = 1;
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}
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}
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strike = strike->next;
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}
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if(found)
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j++;
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}
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return 0;
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}
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